<!doctype html> 
<html> 
<head> 
    <meta charset="utf-8"> 
    <title></title> 
</head>
<body>

<script type="text/javascript">

/*
var a = new Object();
a.c = function(){
	alert(this);
}
a.c();
*/

function show(){
	var a = new Object();
	a.b = 10;
	a.c = function(){
		this.k = 20;
	};
	//a.k = 20;
	a.c();
	return a;
};
//show();//
//var a = new Object();
//	a.b = 10;
alert(show().k)
</script>
</body>
</html>